CN218059311U

CN218059311U - Melt-blown die head with additional flow guide device

Info

Publication number: CN218059311U
Application number: CN202222611200.3U
Authority: CN
Inventors: 张恒; 甄琪; 周忠成; 翟倩; 秦子轩; 李晗; 王瑢琛; 蒋鼎; 薛萌; 刘申奥
Original assignee: Zhongyuan University of Technology
Current assignee: Zhongyuan University of Technology
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-16
Anticipated expiration: 2032-09-30

Abstract

The utility model provides an add melt-blown die head of guiding device belongs to the technical field of melt-blown cloth production for solve melt-blown die head air flow field not concentrated, the technical problem who restraints the dispersion. The melt-blown die head comprises a nozzle, a flow guide part is arranged at the nozzle below the nozzle, the flow guide device comprises two flow guide plates which are arranged in parallel, a flow guide channel is formed between the two flow guide plates, and a liquid inlet of the flow guide channel corresponding to the nozzle is a V-shaped opening. The utility model discloses an install an automatic spacing's guiding device additional in ordinary melt-blown die head outside to the extension is restrainted the passageway, makes the viscous state high polymer fuse-element that erupts concentrate more stably, adjusts the guiding device interval in addition, can also control the size of air current field, satisfies user's actual demand, realizes the further improvement to ordinary melt-blown die head function.

Description

Melt-blown die head with additional flow guide device

Technical Field

The utility model belongs to the technical field of melt-blown fabric production, especially, relate to a melt-blown die head of plus guiding device.

Background

Because of the influence of epidemic situations, the epidemic prevention materials of the masks in China and even in the world are extremely in short supply, so that the requirement of raw material melt-blown cloth for producing the masks is greatly increased, and the development of related technical equipment is driven, wherein the melt-blown die head is particularly important as a key component for producing the melt-blown cloth. The melt-blown cloth is formed by uniformly jetting high polymer melt or solution in viscous state driven by high-temperature high-pressure gas through the spinning micropores of a melt-blown die head and cooling the melt-blown cloth on a receiving device. The airflow field of the common melt-blown die head is not concentrated, so that the concentration of the jetted viscous-state high polymer melt is poor, and the jet flow is dispersed. For example, patent publication No. CN212316388U discloses a device for producing melt-blown filter cloth, a first guide plate and a second guide plate are arranged at a nozzle of a melt-blown die head, and the distance between the tails of the first guide plate and the second guide plate is greater than the distance between the roots of the first guide plate and the second guide plate, so that a relatively closed trumpet-shaped traction space is formed at the nozzle of the melt-blown die head to realize the flow guiding effect. But the distance, the width and the like between the transposition guide channel and the nozzle cannot be adjusted, and the melt flow bundle is less regulated in specific production.

SUMMERY OF THE UTILITY MODEL

To melt the technical problem that the die head air current field is not concentrated, the stream disperses, the utility model provides an add melt-blow die head of guiding device for through extension stream passageway, the viscous state high polymer fuse-element that erupts is concentrated more stably.

In order to achieve the above purpose, the technical solution of the present invention is realized as follows:

the melt-blown die head with the additional flow guide device comprises a nozzle, wherein the flow guide device is arranged at the position of the nozzle below the nozzle and comprises two flow guide plates which are arranged in parallel, a flow guide channel is formed between the two flow guide plates, and a liquid inlet of the flow guide channel, which corresponds to the nozzle, is a V-shaped opening.

The flow guide device is connected with the mobile system, and the position of the flow guide device relative to the spray head can be adjusted under the action of the mobile system.

The moving system comprises a lifting mechanism and a horizontal moving mechanism, the horizontal moving mechanism is arranged on the lifting mechanism, the flow guide device is arranged on the horizontal moving mechanism, the lifting mechanism drives the horizontal moving mechanism and the flow guide device to perform lifting motion, and the horizontal moving mechanism drives the flow guide device to perform horizontal motion.

Elevating system includes motor I and backup pad, and motor I is installed in the backup pad, installs lead screw I on the motor I, the cover is equipped with nut seat I rather than matching on the lead screw I, nut seat I is connected with the guide bar, and the guide bar is fixed in the backup pad, and nut seat I can follow the guide bar and reciprocate under the drive of motor I.

The horizontal movement mechanism comprises a motor II and a guide rail, the guide rail is fixed on the nut seat I, the motor II is fixed on the guide rail through a support, a screw rod II is installed on the motor II, and the screw rod II is sleeved with a nut seat II matched with the screw rod II.

The guide rail is connected with the guide plate, and the guide plate can move horizontally along the guide rail.

The screw II is sleeved with two nut seats II, the two guide plates are respectively fixed on the two nut seats II, and the width of the guide channel is adjusted through the nut seats II.

The support plate is connected with the spray head to form a whole with the spray head.

Two mirror symmetry wedges are arranged on the two guide plates, and an opening with a V-shaped cross section is formed between the two wedges.

The nozzle comprises a spinneret plate and a wind shield, and an air channel is formed between the spinneret plate and the wind shield.

The utility model has the advantages that: through install the guiding device of an automatically regulated interval additional in ordinary melt-blown die head outside to the extension is restrainted the passageway, makes the viscous state high polymer fuse-element that erupts concentrate more stably, adjusts guiding device interval in addition, can also control the size of air current field, satisfies user's actual demand, realizes the further improvement to ordinary melt-blown die head function.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of the present invention.

FIG. 2 is a schematic perspective view of a meltblowing die.

Fig. 3 is a perspective view of the lifting mechanism.

Fig. 4 is a perspective view of the horizontal movement mechanism.

Fig. 5 is a side view of the deflector.

In the figure: 1. a spray head; 11. a spinneret plate; 12. a wind deflector; 2. a lifting mechanism; 21. a motor I; 22. a support plate; 23. a screw rod I; 24. a nut seat I; 25. a guide bar; 3. a horizontal movement mechanism; 31. a guide rail; 32. a support; 33. a motor II; 34. a screw rod II; 35. a nut seat II; 36. a baffle; 37. a wedge block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example 1

A melt-blowing die head with an additional flow guide device is shown in figures 1 and 4 and comprises a spray head 1, wherein melt flow beams are sprayed out from a spray nozzle of the spray head 1; the below of 1 nozzle department of shower nozzle is equipped with guiding device, guiding device includes two parallel arrangement's guide plate 36, forms the water conservancy diversion passageway between two guide plates 36, and the water conservancy diversion passageway corresponds with the export of shower nozzle 1, and the fuse-element STREAM spouts from the exit of shower nozzle 1 and gets into the water conservancy diversion passageway for the viscous state high polymer fuse-element that erupts more concentrates stably, has delayed the diffusion of air current. The liquid inlet of the flow guide channel corresponding to the spray head 1 is a V-shaped opening, and the V-shaped opening can increase the receiving angle of the polymer melt flow beam.

Example 2

A meltblown die with an additional flow-directing device, as shown in fig. 3-5, the flow-directing device is connected to a moving system that enables the flow-directing device to move in multiple dimensions. The moving system comprises a lifting mechanism 2 and a horizontal moving mechanism 3, wherein the horizontal moving mechanism 3 is arranged on the lifting mechanism 2, and the flow guide device is arranged on the horizontal moving mechanism 3. The lifting mechanism 2 can drive the horizontal moving mechanism 3 to move up and down, and the distance between the guide plate 36 and the spray head 1 is adjusted. Elevating system 2 includes motor I21 and backup pad 22, and I21 of motor passes through the fix with screw in backup pad 22, installs I23 of lead screw on the I21 of motor, and I23 of lead screw sets up perpendicularly, the cover is equipped with I24 of nut seat with screw-thread fit on I23 of lead screw, I24 of nut seat and guide bar 25 sliding connection, and the guide bar 25 welds in backup pad 22, and guide bar 25 plays spacing and direction effect, guarantees that I24 of nut seat can reciprocate along guide bar 25.

Horizontal migration mechanism 3 includes motor II 33 and

guide rail

31, and 31 horizontal welding of guide rail is on nut seat I24, and motor II 33 passes through support 32 welded fastening on guide rail 31, installs II 34 of lead screw on motor II 33, and II 34 of lead screw and guide rail 31 parallel arrangement, the cover is equipped with II 35 of nut seat rather than screw-thread fit on II 34 of lead screw, and guide plate 36 passes through the fix with screw on II 35 of nut seat.

The other structure is the same as that of embodiment 1.

Example 3

A melt-blowing die head with an additional flow guide device is shown in figures 1-5, a connecting plate is arranged at the bottom of a flow guide plate 36, a guide rail 31 penetrates through the connecting plate of the flow guide plate 36, and the guide rail 31 and a screw rod II 34 are arranged in parallel and are respectively positioned on two sides of the flow guide plate 36. The nut seat II 35 drives the guide plate 36 to move left and right along the guide rail 31, so that a guide channel in the guide device is accurately butted with a nozzle of the spray head 1. Furthermore, two nut seats II 35 are sleeved on the screw rod II 34, the bottoms of the two guide plates 36 are respectively fixed on the two nut seats II 35 through screws, and the width of the guide channel is adjusted through the nut seats II 35; when in adjustment, the two guide plates 36 are firstly detached from the nut seats II 35, and then the two nut seats II 35 are rotated to adjust the distance between the two nut seats II 35, so that the width of the guide flow channel is adjusted. Two wedge-shaped blocks 37 which are in mirror symmetry are arranged on the two guide plates 36, an opening with a V-shaped cross section is formed between the two wedge-shaped blocks 37, the receiving angle of the polymer melt stream is improved by increasing the width of the inlet, and the condition that the melt stream cannot enter a guide channel when the melt stream is not concentrated is avoided. The nozzle 1 is a part of a conventional melt-blowing process and comprises a spinneret 11 and a wind shield 12, an air passage is formed between the spinneret 11 and the wind shield 12, a liquid inlet and a spinneret orifice are formed in the spinneret 11, hot air is introduced from the air passage, and the melt is drawn at the spinneret orifice to form a flow beam. The supporting plate 22 is fixed on the spinneret plate 11 through screws, so that the whole device is integrated, the spray head 1 is directly installed on the melt-blowing machine in the installation process, and an additional fixed flow guide device is not needed.

The other structure is the same as that of embodiment 2.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The melt-blown die head with the additional flow guide device is characterized by comprising a nozzle (1), wherein the flow guide device is arranged at a nozzle below the nozzle (1) and comprises two flow guide plates (36) which are arranged in parallel, a flow guide channel is formed between the two flow guide plates (36), and a liquid inlet of the flow guide channel corresponding to the nozzle (1) is a V-shaped opening.

2. The melt-blowing die head with the additional flow guide device is characterized in that the flow guide device is connected with a moving system, and the position of the flow guide device relative to the nozzle (1) is adjustable under the action of the moving system.

3. The melt-blowing die head with the additional diversion device as claimed in claim 2, wherein the moving system comprises a lifting mechanism (2) and a horizontal moving mechanism (3), the horizontal moving mechanism (3) is arranged on the lifting mechanism (2), the diversion device is arranged on the horizontal moving mechanism (3), the lifting mechanism (2) drives the horizontal moving mechanism (3) and the diversion device to perform lifting motion, and the horizontal moving mechanism (3) drives the diversion device to perform horizontal motion.

4. The melt-blowing die head with the additional diversion device as claimed in claim 3, wherein the lifting mechanism (2) comprises a motor I (21) and a support plate (22), the motor I (21) is mounted on the support plate (22), a screw rod I (23) is mounted on the motor I (21), a nut seat I (24) matched with the screw rod I (23) is sleeved on the screw rod I (23), the nut seat I (24) is in sliding connection with a guide rod (25), the guide rod (25) is fixed on the support plate (22), and the nut seat I (24) can move up and down along the guide rod (25) under the driving of the motor I (21).

5. The melt-blowing die head with the addition of the diversion device as claimed in claim 4, wherein the horizontal moving mechanism (3) comprises a motor II (33) and a guide rail (31), the guide rail (31) is fixed on the nut seat I (24), the motor II (33) is fixed on the guide rail (31) through a support (32), a lead screw II (34) is installed on the motor II (33), and the nut seat II (35) matched with the lead screw II (34) is sleeved on the lead screw II (34).

6. Meltblown die with the addition of a flow guide according to claim 5, characterised in that the guide (31) is connected to a flow guide (36), the flow guide (36) being horizontally movable along the guide (31).

7. The melt-blowing die head with the additional flow guide device as claimed in claim 6, wherein two nut seats II (35) are sleeved on the screw mandrel II (34), two flow guide plates (36) are respectively fixed on the two nut seats II (35), and the width of the flow guide channel is adjusted through the nut seats II (35).

8. Meltblown die with the addition of a flow guide device according to claim 7, characterised in that the support plate (22) is connected to the nozzle (1).

9. The melt-blowing die head with the additional flow guide device as claimed in any one of claims 1 to 8, wherein two mirror-symmetrical wedge-shaped blocks (37) are arranged on the two flow guide plates (36), and an opening with a V-shaped cross section is formed between the two wedge-shaped blocks (37).

10. Meltblown die with the addition of a deflector according to claim 9, characterised in that the nozzle (1) comprises a spinneret (11) and a wind deflector (12), between which spinneret (11) and wind deflector (12) a gas channel is formed.